John Boswell: Christianity, social tolerance and homosexuality. Univ. of Chicago 1980.            

Thomas Cowan: Gay men and women who enriched the world.Mulvey 1988. 
                                                                
John D'Emilio: Sexual politics, sexual community. University of     
Chicago Press 1983.                                                   

Duberman/Vincinus/Chauncey (ed.): Hidden from history: Reclaiming the                                                                            
gay and lesbian past. Penguin 1990.  

Judy Grahn: Another mother tongue. Beacon Press, Boston 1984.     

Karen Harbeck: Coming out of the classroom closet. Haworth Press 1992.                                                                

Jonathan Katz: Gay American history. Avon Books 1976.   

6541 Simon Le Vay/Dean Hamer: HomosexualitŠt. Biologische Faktoren.
Spektrum 1994/7, 36-43.
                                 
Walter Williams: The spirit and the flesh: Sexual diversity in      
American indian culture. Beacon Press 1986.